Rasterbator - Wall art from any image
Block Posters - A free poster maker to create massive wall posters from your own images! Free!
PosteRazor - PosteRazor is a powerful and lightweight program that cuts a raster image into pieces, allowing you to take a print and assemble them into a poster.
Posterizer - The rasterbator allows you to create posters larger than a standard page, using the tiled printing method. It will rasterize any image and output files that can be printed at home and reassemble to the original image.
PosterPrint - Print multipage posters and banners from any Windows application using any available printer
Splashroad Separation Studio - Quick and Easy Color/Shape Separation